Improved boat-detaching appaeatus



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.dige Stlgttnh reirme tu in these ttttrs ttrnt mit mating partit the stmt.

TO ALI WHOM IT MAY CONERN:

Beit known that I, ROBERT Cnnuznstuu, of New York city, in the county and `State of New York, have invented an Improved Attaching and Detaehing-Dcvice for Boats; and I hereby declare that the following is a full, clear, and'exact description thereof', reference being had to the accompanying drawings, making part of this specieation, in which- Figure 1 is a top view of' a boat having my improved attaching and detaching-devicc applied toit.

Figure 2 is a longitudinal section through the boat, taken in the vertical 'planes indicated by the course of red linesx iig. 1. y

Figure 3 is a view of one of the coupling-tongues adapted for the detaching-device of Hgs. 1 and 2.

Figure 4 is a top view of the boat having a modified form of attaching and dctaching-device applied to it.

Figure 5 is a. longitudinal section through tigf4, taken in the vertical plane indicated by red line y y.

Figure 6 is a cross-section through iig. 5, taken in the plane' indicated by line x ze.

Figure 7 shows a coupling-tongue connected to n. spring-b0x by a swivel-joint.

Similar letters of reference indicate corresponding parts in the several figures.

This'inven'tion relates to certain novel devices, which are designed for facilitating thcattachment ofa boat' to the ends of davit or suspension-ropes, and also for facilitating the detachment of a boat from said ropes, so that the boat may be cast nii` with safety to thc persons in it in a smooth or rough sea. It is intended to employ this invention in connection with the hingpd davits, and boat-lowering and raising apparatus, set forth in my specifications marked A and B but it is not intended to confine the invention to said mechanism, as it will be found just as useful when in connection with the old modes of raising and lowering ships boats.

The nature of my invention consists mainly in the application of spring-bolts to both ends cfa. boat', which arc adapted for receiving and locking in place coupling-tongues which are fastened to the ends of davit or suspension-ropes, and in the employment, in conjunction therewith, of longitudinally movable rods, and a lever for adjusting them in such manner, that, by a slight movement of 'said lever, both coupling-tongues can be instantly detached from their'bolts and the boat released from the suspension-ropes, as will be hereinafter described.

It also consists in so constructing the enteringsheaths, through which the spring-bolts play, and the coupling-tongues, that the latter will be positively guided into their respcctivc'sheaths, and brought into position for receiving the bolts by a simple downward thrust of the said tongues, as will be hereinafter described.

It also consists in the application of suspension-springs to the coupling-tongues, in such manner as to neutralize all shocks and strains upon the boat and its suspension-ropes, as will be hereinafter described.

To enable others skilled in the art to understand my invention, I will describe its construction and operation.

In the accompanying drawings, figs. 1 and 2, a represents a vibrating hand-lever, which is secured on the inner end of an oscillating pin. This lever and pin are arranged at or near the middle of the length of the boat Aand applied to one Aside thereof', as shown .in figs. 1 and 2. Upon the oscillating pin ot' lever a, two eccentrics, I), are secured, which work in recesses formed in the sides and near tho ends of the two rods ec, and thus by vibrating lever a, the rods c c will be caused to move cndwisc in opposite directions. These rods are guided and kept in place at their inner ends, by making longitudinal slots through them, and passing the oscillating pin of lever a through said slot-s, andinto a suitable bearing in the side of the boat. The studs or pins c e on the rods e e, allow the lever to be moved onelhalf of a circle, and serve as stops for it. The outer ends of rods e c have socket-s formed in them for receiving the inner ends of longitudinally moving bolts d d, which latter are connected to said rods by pins passing transversely through the socket portions, and also through oblong slots made through the bolts, as shown in iig. 1. The bolts pass through and are guided by the eyebearings e e, and between these bearings and collars e e', upon the bolt, springsfare interposed, which force the bolts outward and keep them in this position. The outdr ends of bolts d d are bcvelled, so as to form latchingnoses, and these ends pass through slots which are made through sheaths B B, that are secured in the ends of the boat. These sheaths are iiaring or bell-mouthed, and they have,vertical slots vthrough them, which are in planes at right vangles to the slots through which the boltnoses pass, as shown in the top view, lig. 1. The

Sheaths are thus adapted for receiving the coupling-tongues C C, which are secured, by means of eyes for-med in their ends, to the davit-ropes. These tongues are pointed as shown, and they have slots or eyes through them, through which the bolts d d pass, as shown in iig. 2. The tongues are also constructed with rounded ears 0r wngsff upon them, arranged at right angles to the'slots through which the bolts pass. These ears or wings are receivediby the vertical slots in the sheaths, and the tongues guided into their sheaths, so that the Slots through the former will always be brought in a position forreceiving the bolts. By this arrangement, the attachment of a boat to its davit-ropes can he made in `the darlc as well asin the light. A detachment is effected of both tongues C C simultaneously by moving the lever a so as to draw both bolts toward this lever.

In figs. 4, 5,26, and 7, a modification is shown `for eiecting the result above set forth. This plan is as follows: g is a central vibrating hand-lcver, which is pivoted to one side of the boat. At a proper distance on cach side ofthe centre ofmotion of said lever, horizontally moving bars g1g1 are pivoted, so that they will have precisely thc same amount of motion in opposite directions imparted to them by vibrating the said hand-lever. The o uter extremities of these bars g are pivoted to levers g2, which are hinged to the stern and bow-seats, underneath' the same, so as to be out of the way. The ldirection of these levers is so arranged that their free ends may, as nearly as practicable, conform to the curveof that part ofv the boats side along which they sweep. In the middle of the stern-seat-this description 'also applies tothe other endo? the boat as wella strong bolt, L, is confined within suitable guides, so as to lie in a direct-ion with the keel of the boat. A pin, h', {irmly fastened to this bolt, extends up through aslot through lever ya, which controls its movement. Sufficient play should be allowed to this pin within its slot to admit of the forcing back ofthe bolt when in the position shown in tig. 5, by the slotted tongue-piece E; and, when forced back, the spring z', which is beneath the bolt h, will force the bolt outwardthrough the sheath D, so as to pass through the slot inthe suspension-'tongue piece E. This tongue-piece E and its corresponding `bellrnouthed sheath D, are made tapering, in such-'manner as to prevent binding of thc'ton-gue when it is within the sheath. The upper endet' the 'tongue E is screwed into or otherwisesuitably secured to a ball, j, which is placed within the hollow suspension-cylinder k, shown in gs. 5 and 7, `so as to form a ball-joint. ,lhis cylinder is made elastic by `the spring Z, which is interposed Abetween thc piston m and the cylinder-cap," and hich surrounds the piston-rod to which the suspension-rope is fastened. B'y

this mode of attachingthe slo' ted tongue-pieceE of each end of the boat to its 4respective suspension-tope, there will be little Hor no jar orconcussion upon the parts, as thcsprings Zlwill yiel'dand neutralize all suddenishocks.

Whatl claim as new, and desire to secure by Letters Patent, is.-

1. Spring-bolted"d or their equivalents, constructed as described, and applied to shea-tbs, so as to catch Aand hold the suspension-tongues C C when thrust into said sheath, substantially as described. i i

.2. The employment of eccentries or cams b b, in combination with the rods c c and spring-bolts d d, suhstantially as described. i i A 3. The feathered coupling-tonguesv C, in combination with grooved'and laring sheaths, substantially as described. l i

4. The attachment ofthe coupling-tongues to springs or spring-boxes, substantially 'as described.

` Roer. GREUZBAUR.

Witnesses:

WILH. LUHN, L. J. CoMsTocK. 

